There’s a revolutionary new brassiere on the market and it comes in size 38 – caliber, not cup size.

The bra features a built-in holster that can hold a .38-caliber revolver and a canister of pepper spray.

It’s the brainchild of Paxton Quigley, a Beverly Hills security consultant who felt that women needed a better place to store their weapons.

“The problem is most women keep their firearms in their purse – and that’s the first thing an attacker will try to take,” Quigley told The Post.

“Once that’s gone, they’ve lost their best friend. With my bra, the weapon is closer to the body and can be obtained more easily.

“The holster is between the cups so that the gun is right in the cleavage area. I tested it several ways and found the cleavage is the best place to hide something.”

Quigley got the idea for the holster bra a few years ago while a bodyguard to Yoko Ono.

“She’s a very high-profile person and I wanted to make sure I had access to my weapon in case I needed it quickly,” Quigley said. She designed the bra for herself and then got the idea to market it while teaching a seminar on personal protection.

“I mentioned to them that I had made up this bra and instantly there were cries of, ‘I want it! I want it!'” said Quigley.

The bra – made of elastic and available in black or white – costs $29.99.